What is the air quality trend in Sasebo?

Over the past 8 days, Sasebo had an average AQI of 55 based on station measurements. The worst day was 2026-10-14 with AQI 77.

How is Sasebo air quality measured?

Air quality in Sasebo is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Sasebo, Japan

Name: Sasebo Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Sasebo, Japan.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 14 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	35	23–57	8.7 µg/m³	4h	18
2026-10-20	45	23–118	11.9 µg/m³	24h	12
2026-10-19	57	23–152	16.4 µg/m³	24h	11
2026-10-18	36	20–57	8.6 µg/m³	24h	14
2026-10-17	62	31–191	20.5 µg/m³	24h	10
2026-10-16	73	35–153	23.4 µg/m³	24h	10
2026-10-15	58	23–152	16.9 µg/m³	24h	10
2026-10-14	77	26–174	26.9 µg/m³	17h	11

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